Study of the material of the ATLAS inner detector for Run 2 of the LHC

The ATLAS inner detector comprises three different sub-detectors: the pixel detector, the silicon strip tracker, and the transition-radiation drift-tube tracker. The Insertable B-Layer, a new innermost pixel layer, was installed during the shutdown period in 2014, together with modifications to the...

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Autor principal:	Aaboud, M.
Formato:	JOUR
Materias:	Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc) Particle tracking detectors Performance of High Energy Physics Detectors Charged particles Photons Readout systems Silicon detectors Tellurium compounds Hadronic interactions High energy physics detector Modelling and simulations Particle tracking Reconstruction efficiency Silicon strip tracker Support structures Transition radiation Pixels
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17480221_v12_n12_p_Aaboud
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_17480221_v12_n12_p_Aaboud
record_format	dspace
spelling	todo:paper_17480221_v12_n12_p_Aaboud2023-10-03T16:32:09Z Study of the material of the ATLAS inner detector for Run 2 of the LHC Aaboud, M. Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc) Particle tracking detectors Performance of High Energy Physics Detectors Charged particles Photons Readout systems Silicon detectors Tellurium compounds Hadronic interactions High energy physics detector Modelling and simulations Particle tracking Reconstruction efficiency Silicon strip tracker Support structures Transition radiation Pixels The ATLAS inner detector comprises three different sub-detectors: the pixel detector, the silicon strip tracker, and the transition-radiation drift-tube tracker. The Insertable B-Layer, a new innermost pixel layer, was installed during the shutdown period in 2014, together with modifications to the layout of the cables and support structures of the existing pixel detector. The material in the inner detector is studied with several methods, using a low-luminosity s=13 TeV pp collision sample corresponding to around 2.0 nb -1 collected in 2015 with the ATLAS experiment at the LHC. In this paper, the material within the innermost barrel region is studied using reconstructed hadronic interaction and photon conversion vertices. For the forward rapidity region, the material is probed by a measurement of the efficiency with which single tracks reconstructed from pixel detector hits alone can be extended with hits on the track in the strip layers. The results of these studies have been taken into account in an improved description of the material in the ATLAS inner detector simulation, resulting in a reduction in the uncertainties associated with the charged-particle reconstruction efficiency determined from simulation. © 2017 CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17480221_v12_n12_p_Aaboud
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc) Particle tracking detectors Performance of High Energy Physics Detectors Charged particles Photons Readout systems Silicon detectors Tellurium compounds Hadronic interactions High energy physics detector Modelling and simulations Particle tracking Reconstruction efficiency Silicon strip tracker Support structures Transition radiation Pixels
spellingShingle	Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc) Particle tracking detectors Performance of High Energy Physics Detectors Charged particles Photons Readout systems Silicon detectors Tellurium compounds Hadronic interactions High energy physics detector Modelling and simulations Particle tracking Reconstruction efficiency Silicon strip tracker Support structures Transition radiation Pixels Aaboud, M. Study of the material of the ATLAS inner detector for Run 2 of the LHC
topic_facet	Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc) Particle tracking detectors Performance of High Energy Physics Detectors Charged particles Photons Readout systems Silicon detectors Tellurium compounds Hadronic interactions High energy physics detector Modelling and simulations Particle tracking Reconstruction efficiency Silicon strip tracker Support structures Transition radiation Pixels
description	The ATLAS inner detector comprises three different sub-detectors: the pixel detector, the silicon strip tracker, and the transition-radiation drift-tube tracker. The Insertable B-Layer, a new innermost pixel layer, was installed during the shutdown period in 2014, together with modifications to the layout of the cables and support structures of the existing pixel detector. The material in the inner detector is studied with several methods, using a low-luminosity s=13 TeV pp collision sample corresponding to around 2.0 nb -1 collected in 2015 with the ATLAS experiment at the LHC. In this paper, the material within the innermost barrel region is studied using reconstructed hadronic interaction and photon conversion vertices. For the forward rapidity region, the material is probed by a measurement of the efficiency with which single tracks reconstructed from pixel detector hits alone can be extended with hits on the track in the strip layers. The results of these studies have been taken into account in an improved description of the material in the ATLAS inner detector simulation, resulting in a reduction in the uncertainties associated with the charged-particle reconstruction efficiency determined from simulation. © 2017 CERN.
format	JOUR
author	Aaboud, M.
author_facet	Aaboud, M.
author_sort	Aaboud, M.
title	Study of the material of the ATLAS inner detector for Run 2 of the LHC
title_short	Study of the material of the ATLAS inner detector for Run 2 of the LHC
title_full	Study of the material of the ATLAS inner detector for Run 2 of the LHC
title_fullStr	Study of the material of the ATLAS inner detector for Run 2 of the LHC
title_full_unstemmed	Study of the material of the ATLAS inner detector for Run 2 of the LHC
title_sort	study of the material of the atlas inner detector for run 2 of the lhc
url	http://hdl.handle.net/20.500.12110/paper_17480221_v12_n12_p_Aaboud
work_keys_str_mv	AT aaboudm studyofthematerialoftheatlasinnerdetectorforrun2ofthelhc
_version_	1807318141155409920

Study of the material of the ATLAS inner detector for Run 2 of the LHC

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